This design is intended to test the offset between two FDM heads. It also tests the parallelism between the 2 X axes in Zidex type printers.

It is designed for 0.4mm large and 0.2 mm high layers. Different settings may result in incorrect slicing.

To use it in cura place the "outside" part flat at Z=0 and the "inside" part at the same X and Y coordinates and at Z=0.4
For that make sure that the parameters:
Preference/Configure Cura/Automatically drop models to the build plate
and
Preference/Configure Cura/Ensure models are kept apart
are unchecked.

It prints in a few minutes and consumes very little filament.
If you want a bigger test you can change the scale but the Z offset must be increased by the same ratio. If you print in 200% the Z offset is 0.8mm